Why are people acting like this precludes the Redskins from making other moves to upgrade the secondary?

I understand they haven't much yet, but cap space still exists and the draft is yet to come.

I think everyone wanted one named guy for either the safety or DB spot. The fact that neither has seen much change certainly isn't going to receive standing ovations. And the glass half empty folks just will see it as more of the same (not a good thing).